WP Hashcash antispam plugin
The Hashcash team created a WordPress plugin to help users get started quickly, not to be confused with the popular WP–Hashcash plugin.
WP Hashcash is an antispam plugin that eradicates comment spam on WordPress blogs. It works because your visitors must use obfuscated javascript to submit a comment.
Hashcash is a proof-of-work system used to limit email spam and denial-of-
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